#!/bin/bash -x
export RUBYLIB="/usr/lib/site_ruby"
#------------variables, change to yours-------------
AWS_ACCESS_KEY_ID=""
AWS_SECRET_ACCESS_KEY=""
AWS_ACCOUNT_NUMBER=""
PRIVATE_KEY_PATH="path-to-your-private-key-file"
PUBLIC_KEY_PATH="path-to-your-public-key-file"
NEW_FILESYSTEM_SIZE="4096" # In MB
BUCKET_NAME="my-bucket-for-backup-CHANGE"
SCRAP_DIR="/mnt/image-snapshot"
#===================================================
echo Starting backup
cd /mnt
#clean the workdir
/bin/rm -rf /mnt/image-snapshot
/bin/mkdir -p /mnt/image-snapshot
#create new image
NEW_FILE=debian_`date +%H-%d.%m.%y`
DAY=`date --date="4 days ago" +%d.%m.%y`
FILE=debian_`date +%H-`${DAY}
echo New image name is ${NEW_FILE} and the old one is ${FILE}
/usr/local/bin/ec2-bundle-vol -p ${NEW_FILE} -d ${SCRAP_DIR} -k ${PRIVATE_KEY_PATH} -c ${PUBLIC_KEY_PATH} -u ${AWS_ACCOUNT_NUMBER} -s ${NEW_FILESYSTEM_SIZE}
sleep 1
#upload new image
/usr/local/bin/ec2-upload-bundle -b ${BUCKET_NAME} -m ${SCRAP_DIR}/${NEW_FILE}.manifest -a ${AWS_ACCESS_KEY_ID} -s ${AWS_SECRET_ACCESS_KEY} --debug --retry
sleep 1
#delete back-up from two days ago
/usr/local/bin/ec2-delete-bundle -a ${AWS_ACCESS_KEY_ID} -s ${AWS_SECRET_ACCESS_KEY} -y -b ${BUCKET_NAME} -p ${FILE}
sleep 1
echo Done